one thing to know if flext is not anymore updated in the puredata svn (can we remove externals/grill?). so instead use:
http://puredata.info/Members/thomas/
svn co https://svn.grrrr.org/ext/trunk/flext/ flext
sh build.sh pd gcc nano buildsys/config-lnx-pd-gcc.txt sh build.sh pd gcc nano config.txt sh build.sh pd gcc sh build.sh pd gcc install ldconfig -v | grep flext
svn co https://svn.grrrr.org/ext/trunk/xsample/ xsample
sh ../flext/build.sh pd gcc sh ../flext/build.sh pd gcc install pd -lib xsample
svn co https://svn.grrrr.org/ext/trunk/py/ py (not working for me - crashing pd)
pat